Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Avoiding Tobacco Smoke and E Cigarette Aerosol Is a Key Part of Asthma Management Asthma and Allergy Foundation of America Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals Tobacco Smoke, Vaping, and Asthma AAFA.org E Cigs and Second Hand Vaping: Dangers and Protections